Home / 56,471.76-77,940.36-31,329.36

Finding the Fourth Proportional to 56,471.76, 77,940.36 and 31,329.36

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Solution

The fourth proportional to 56,471.76, 77,940.36 and 31,329.36 is: 43,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,471.76 : 77,940.36 = 31,329.36 : x
  2. Step 2: Convert to fraction form
    56,471.76/77,940.36 = 31,329.36/x
  3. Step 3: Cross multiply
    56,471.76x = 77,940.36 × 31,329.36
  4. Step 4: Simplify right side
    56,471.76x = 2,441,821,596.97
  5. Step 5: Solve for x
    x = 2,441,821,596.97/56,471.76
  6. Step 6: Final answer
    x = 43,239.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.